- Cable TV Companies & Services, Pennington Gap
- Card & Game Rooms & Services, Pennington Gap
- Cars, Truck, Van & SUV Car Dealerships, Pennington Gap - Auto Dealers
- Casual Dining Restaurants, Pennington Gap
- Cellular & Mobile Phone Service, Pennington Gap
- Child Related Social Services, Pennington Gap
- Chinese Restaurants, Pennington Gap
- Chiropractic Clinics, Pennington Gap
- Christian Churches, Pennington Gap
- Church Of God, Pennington Gap
- Church Of The Living God, Pennington Gap
- Churches 1 Of 3, Pennington Gap
- Churches 2 Of 3, Pennington Gap
- Cigar, Cigarette & Tobacco Store & Supplies, Pennington Gap
- City & County Administrative Agencies, Pennington Gap
- City & County Government, Pennington Gap
- Clinics, Pennington Gap
- Clothing Stores, Pennington Gap - Clothes & Accessories
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- CNC Machine Shop, Pennington Gap
- Commercial Equipment, Pennington Gap
- Commercial Printing, Pennington Gap
- Communications Services, Pennington Gap
- Community & Recreational Facilities, Pennington Gap
- Community Services, Pennington Gap
- Computer & Laptop Repair, Pennington Gap - PC Repair Services
- Computer Repair, Pennington Gap
- Concrete, Pennington Gap - Cement & Concrete Products, Suppliers, Companies
- Concrete & Cement, Pennington Gap
- Concrete Product Manufacturers, Pennington Gap
- Construction, Pennington Gap
- Contact Lenses, Pennington Gap
- Convenience Stores, Pennington Gap
- Cooling System & Parts, Pennington Gap - Antifreeze, Radiator, Water Pump, Fan, Hoses, Belts, etc
- Counseling Professionals, Pennington Gap
- Crushed Stone & Rock, Pennington Gap - Crushed Granite, Concrete, Gravel, etc
- Custom Parts & Accessories, Pennington Gap
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